The role of inter-adsorbate interactions and adsorption geometry in surface diffusion
In previous neutron scattering experiments, we have studied and characterized the diffusive behaviour of polyciclic hydrocarbons (PAH) adsorbed on exfoliated graphite substrates extensively. In the proposed experiment we would like to study the diffusion of triphenylphosphine (PPh3) on graphite. In doing so we attempt to characterise the role of adsorption geometry and lateral interactions between adsorbates in surface diffusion. This is based on the fact that PPh3 exhibits a completely different adsorption geometry compared to PAHs as well as due to its dipole moment which should give rise to a strong coverage dependence of the diffusive process.
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TAMTOEGL Anton; FOUQUET Peter and KOZA Michael Marek. (2018). The role of inter-adsorbate interactions and adsorption geometry in surface diffusion. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-476
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